Brief introduction of chip diode
Time:2022-10-19
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Chip diode is also called crystal diode, which is called diode for short. In addition, there are early vacuum electronic diodes; It is an electronic device with unidirectional conduction current. There is a PN junction and two lead terminals inside the semiconductor diode. This electronic device has unidirectional current conductivity in the direction of applied voltage.
Generally speaking, SMD is a p-n junction interface formed by sintering of p-type semiconductor and n-type semiconductor. A space charge layer is formed on both sides of the interface to form a self built electric field. When the applied voltage is equal to zero, the diffusion current caused by the concentration difference of carriers on both sides of the p-n junction is equal to the drift current caused by the self built electric field, and the diode is in an electric balance state, which is also a normal diode characteristic.
SMD In electronic components, a device with two electrodes that allows current to flow in only one direction. Many of its uses are to apply its rectification function. Varicap Diode is used as an electronic adjustable capacitor.
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